Do you know everyday. It is about 25000000 photos uploaded to the Instagram. 800000 twitters together in a seconds. Also. Facebook. Its kingdom has more than twelve hundred million members. A large amount of population in a cyber space. Social network apps widespread   Covering up every corner. We daily upload local news. Ours feeling to a special thing. Gossips. Photos. Video. YouTube. Twitter. And Facebook ban in china. But it's attractive to us. We can find what's news today around the world. How about geopolitic issues. Music and arts. Fashion. All referred to humankind s development and life mode. Many netizen are hungry for sharing their own photos. Tweets. Because they aim to construct a large net. A net which we can contact anyone. We share infos. News. And convey general thinking. Evaluate spirit. Create real democracy that both transmit sorts of data and break the limit. Have chance to freespeech. And liberate ours limit mind. And extermine the gaps.  But to disadvantage. Behind the net. Conspiracy will come out. A wolf behind the door. We build a bridge. But many unknown things will disturb like virus invades. It's coincidence.